JP2011217043A - Communication terminal and communication method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve matching characteristics among antennas with opposite devices to secure a wide communication area, in communication with the plurality of opposite devices different in communication system such as a modulation system or in transmission rate.SOLUTION: An antenna 1 performs proximity communication by electromagnetic induction. A GPS receiving part 8 and a second communication part 9 acquire present position information. An R/W installation place map database 7 stores information on an installation place of an R/W device. A coordinate collation part 6 specifies the R/W device based on the information on the installation place and the position information. A communication system database 5 stores information on a communication system of the R/W device. A communication system selection part 4 selects a communication system corresponding to the R/W device specified by the coordinate collation part 6 by the information on the communication system. A selection system matching circuit 2 is resonated with a resonance frequency of the communication system selected by the communication system selection part 4 in the case of the proximity communication.

Description

  The present invention relates to a communication terminal device and a communication method, and more particularly to a communication terminal device and a communication method for performing near field communication using electromagnetic induction with a plurality of external communication devices.

  In recent years, there has been an increasing demand for development of a communication system that performs communication in close proximity to the degree of contact or close contact with a communication partner. Specifically, there is an increasing demand for development of a communication system that performs communication using an electric field or a magnetic field in a proximity region of about 10 cm or less where an electric field or a magnetic field acts. Such a communication system is used for various services. For example, it is used for a service for copying electronic data storing personal information data such as a telephone directory to a mobile phone. Also, it is used for electronic medical chart reading or writing services in hospitals or pharmacies. It is also used for services such as browsing or billing of electronic resident register data such as resident cards or family registers. Also, it is used in a service for transferring, copying or storing various data such as music or images of personal hobbies to its own mobile phone. Further, it is used for a service that allows a desired electronic device to read money amount data for prepaid use such as a vending machine. It is also used for a ticket gate passing service using a pass at an amusement park or a station.

  Proximity non-contact communication capable of performing proximity non-contact communication with an external proximity non-contact communication device (hereinafter referred to as “external proximity non-contact communication device”) as a device used when receiving the above service. Various developments of portable communication devices having a contact communication function have been studied. Further, as an external proximity non-contact communication device, there is a reader / writer (hereinafter referred to as “R / W”) device or the like (for example, Patent Document 1).

  The above R / W devices use different modulation schemes or transmission rates depending on the services that the user can receive. FIG. 1 is a conceptual diagram of communication between a plurality of conventional R / W devices and an NFC (Near Field Communication) terminal. Each R / W device uses a different modulation scheme or transmission rate. Therefore, as shown in FIG. 1, the NFC terminal includes communication circuits A, B,..., N, a matching circuit having different resonance conditions including resistors and capacitors, and an antenna including coils. / W for each device. Further, the NFC terminal includes a reception response circuit, an antenna configured by a coil, and a resonance matching circuit configured by a resistor and a capacitor in order to communicate with each R / W device. Further, when the NFC terminal communicates with each R / W device, the optimum condition of the matching circuit is different. Therefore, in order for the NFC terminal to perform stable communication with all the R / W devices, it is necessary to make the matching circuit a condition of the greatest common divisor.

JP 2009-111143 A

  However, in Patent Document 1, since the R / W device uses a different modulation method or transmission speed depending on the service, when the communication terminal device has a matching circuit with a fixed resonance frequency, the induced current of the antenna decreases. There is a problem that the communication area is reduced. In addition, when communicating with each R / W device using a matching circuit having the greatest common divisor condition, the communication with each R / W device is performed using a matching circuit having an optimum condition for each R / W device. Therefore, there is a problem that the communication area becomes narrow.

  An object of the present invention is to improve matching characteristics between an antenna and an opposing device in communication with a plurality of opposing devices having different communication methods such as a modulation method or a transmission speed, and ensure a wide communication area. A communication terminal apparatus and a communication method are provided.

  The communication terminal apparatus according to the present invention includes a first communication unit that performs proximity communication by electromagnetic induction, a position information acquisition unit that acquires current position information, and a first storage that stores information on an installation location of the reader / writer device. Based on the means, the information on the installation location, and the position information, the collation means for identifying the reader / writer device, the second storage means for storing the communication method information for each reader / writer device, and the collation means A selection unit that selects the communication method corresponding to the reader / writer device from information on the communication method, and a matching circuit that resonates at the resonance frequency of the communication method selected by the selection unit during the near field communication, The structure which has is taken.

  The communication method of the present invention is a communication method in a communication terminal device that communicates with a reader / writer device, the step of performing proximity communication by electromagnetic induction, the step of acquiring current position information, and the reader / writer stored in a storage means A step of identifying a reader / writer device based on information on an installation location of the device and the position information, and a communication method corresponding to the reader / writer device identified by the collating unit for each reader / writer device stored in the storage unit A step of selecting from information on a communication method; and a step of resonating at a resonance frequency of the selected communication method at the time of the near field communication.

  According to the present invention, in communication with a plurality of opposite devices having different communication methods such as a modulation method or a transmission rate, matching characteristics between the antennas with the opposite device can be improved, and a wide communication area can be secured. .

Conceptual diagram of communication between conventional R / W and NFC terminals The block diagram which shows the structure of the communication terminal device which concerns on Embodiment 1 of this invention. 1 is a block diagram showing a configuration of a selective matching circuit according to a first embodiment of the present invention. The block diagram which shows the structure of the communication terminal device which concerns on Embodiment 2 of this invention. The figure which shows an example of the data stored in the service database which concerns on Embodiment 2 of this invention The figure which shows an example of the use state of the communication terminal device which concerns on Embodiment 2 of this invention, and the state transition of a communication system selection part. The block diagram which shows the structure of the communication terminal device which concerns on Embodiment 3 of this invention. The block diagram which shows the structure of the communication terminal device which concerns on Embodiment 4 of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(Embodiment 1)
FIG. 2 is a block diagram showing a configuration of communication terminal apparatus 100 according to Embodiment 1 of the present invention. The communication terminal device 100 is an NFC terminal, for example.

  The communication terminal device 100 includes an antenna 1, a selective matching circuit 2, a first communication unit 3, a communication method selection unit 4, a communication method database 5, a coordinate matching unit 6, and an R / W installation location map. It is mainly composed of a database 7, a GPS receiving unit 8, and a second communication unit 9.

  The antenna 1 performs near field communication with the facing R / W device by electromagnetic induction. In addition, the antenna 1 is matched by the selective matching circuit 2 in close proximity communication, and resonates at a predetermined resonance frequency, resonates at a predetermined antenna Q, or resonates at a predetermined resonance frequency and the predetermined antenna Q. The received signal is output to the first communication unit 3 via the selective matching circuit 2.

  The selective matching circuit 2 matches the antenna 1 for each type of the facing R / W device by switching the antenna matching condition for each type of the facing R / W device according to the control of the communication method selection unit 4. That is, the selective matching circuit 2 resonates the antenna 1 under optimum antenna matching conditions for each type of R / W device to secure a wide communication area, and generates a large current when communicating with the R / W. To increase the signal amplitude. Here, the type of the R / W device means an R / W device that is used for different purposes and has a different communication method such as a modulation method or a transmission rate. For example, the type of the R / W device used for FeliCa (FeliCa registered trademark) is different from that of the R / W device used for browsing or billing the Basic Resident Register card.

  The first communication unit 3 acquires a signal received by the antenna 1 via the selective matching circuit 2, and performs frequency conversion, demodulation, and decoding on the acquired signal. The first communication unit 3 performs the above processing in, for example, NFC communication.

  The communication method selection unit 4 acquires information on R / W devices existing around the communication terminal device 100 from the coordinate matching unit 6. Further, the communication method selection unit 4 acquires communication method data by referring to the communication method database 5 using the acquired information on the R / W device, and identifies the R / W device specified by the coordinate matching unit 6. Specify the communication method. In addition, the communication scheme selection unit 4 controls the selective matching circuit 2 in order to make the antenna matching for the identified communication scheme suitable. Here, the communication method is, for example, a communication method used for Felica or a communication method used for the Basic Resident Register card.

  The communication method database 5 is a database that stores data in which the type of the R / W device is associated with the communication method data. Here, the communication method data is data for specifying a transmission rate, a modulation method, a resonance frequency, an antenna Q, or the like, which is different for each type of R / W device, and is set in advance before starting communication. Further, the communication method data is data required when adjusting the matching circuit in order to perform communication in the communication terminal device 100 satisfactorily. Here, the antenna Q is a value indicating the steepness of the rise and fall of the peak of VSWR (Voltage Standing Wave Ratio) at a desired frequency.

The coordinate matching unit 6 includes coordinate data acquired from the GPS receiving unit 8, position information acquired from the second communication unit 9, and R / W installation location map data acquired from the R / W installation location map database 7. Based on this, R / W devices existing around the communication terminal device 100 are searched and specified. Then, the coordinate matching unit 6 outputs information on the identified R / W device to the communication method selection unit 4 as a search result. In addition, when referring to the R / W installation location map database 7, the coordinate matching unit 6 arbitrarily sets a reference range in advance according to the current position of the communication terminal device 100. For example, since the number of R / W devices installed in the region is small and the types of R / W devices are also limited, the coordinate matching unit 6 sets the reference range to several km ² to several 10 km ² . To do. On the other hand, the coordinate matching unit 6 sets a reference range to several tens of m ² or less in a place such as a commercial facility in a city where many different types of R / W devices are installed. Thereby, the coordinate matching unit 6 can easily search for the R / W device. Moreover, as information of R / W apparatus, it is information which identifies the kind of buildings, such as a station, a convenience store, or a city hall, for example.

  The R / W installation location map database 7 is a database that stores R / W installation location map data that associates the type of installed R / W device with the installation location of the R / W device.

  The GPS receiving unit 8 receives the GPS signal and calculates the received GPS signal, thereby acquiring coordinate data indicating the current position information of the communication terminal device 100. Then, the GPS receiving unit 8 outputs the acquired coordinate data to the coordinate matching unit 6.

  The second communication unit 9 performs communication using the communication method used in the mobile phone, and acquires the current position information of the communication terminal device 100. Then, the second communication unit 9 outputs the acquired position information to the coordinate matching unit 6. Note that the GPS receiving unit 8 and the second communication unit 9 that acquire the current position information of the communication terminal device 100 may include only one or both as illustrated in FIG. Also good.

  Next, a detailed configuration of the selective matching circuit 2 will be described with reference to FIG. FIG. 3 is a block diagram showing a configuration of the selective matching circuit 2.

  In the selective matching circuit 2, a resonance circuit is configured by a capacitor C <b> 0 connected in parallel to the antenna 1. The selective matching circuit 2 includes a plurality of switches SW1, SW2,..., SWn connected in parallel with the antenna 1. The selective matching circuit 2 includes a resistor R1 connected in series with the switch SW1 and a capacitor C1 connected in series with the switch SW1 and the resistor R1. The selective matching circuit 2 includes a resistor R2 connected in series with the switch SW2 and a capacitor C2 connected in series with the switch SW2 and the resistor R2. The selective matching circuit 2 includes a resistor Rn connected in series with the switch SWn and a capacitor Cn connected in series with the switch SWn and the resistor Rn. The resistors R1, R2,..., Rn perform antenna Q control. The capacitors C1, C2,..., Cn perform resonance frequency control.

  In the selective matching circuit 2 having the above-described configuration, by turning on one or more of the switches SW1, SW2,. Therefore, the resonance frequency, the antenna Q, or the resonance frequency and the antenna Q are set to appropriate states. Specifically, the resonance frequency of the resonance circuit can be lowered by turning on the switch SW1. Alternatively, the antenna Q of the resonance circuit can be reduced by turning on the switch SW1. Alternatively, by turning on the switch SW1, the resonance frequency of the resonance circuit can be lowered and the antenna Q can be reduced. The same applies to the switches SW2,.

  Note that the switch SW1, the resistor R1, and the capacitor C1 can be arranged in any order as long as they are arranged in series, and the same effect can be obtained. In addition, if the communication method selection unit 4 can maintain a state where any one of the switches SW1,..., SWn is ON, a configuration without the capacitor C0 is also possible.

  As described above, according to the present embodiment, the current flowing through the antenna can be increased by selectively switching to the optimum matching state for each R / W device facing the communication terminal device. A signal can be received. As a result, the matching characteristics between the antenna with the facing R / W device can be improved, and a wide communication area can be secured.

(Embodiment 2)
FIG. 4 is a block diagram showing a configuration of communication terminal apparatus 400 according to Embodiment 2 of the present invention.

  Communication terminal device 400 shown in FIG. 4 adds communication protocol recognition unit 21, service determination unit 22, and service database 23 to communication terminal device 100 according to Embodiment 1 shown in FIG. Instead of the method selection unit 4, a communication method selection unit 24 is provided. In FIG. 4, parts having the same configuration as in FIG.

  The communication terminal device 400 includes an antenna 1, a selective matching circuit 2, a first communication unit 3, a communication method database 5, a coordinate matching unit 6, an R / W installation location map database 7, and a GPS receiving unit. 8, a second communication unit 9, a communication protocol recognition unit 21, a service determination unit 22, a service database 23, and a communication method selection unit 24.

  The first communication unit 3 acquires a signal received by the antenna 1 via the selective matching circuit 2, frequency-converts, demodulates and decodes the acquired signal, and outputs the signal to the communication protocol recognition unit 21. For example, the first communication unit 3 performs the above processing when performing NFC communication.

  The communication protocol recognizing unit 21 analyzes the signal acquired from the first communication unit 3 and determines a communication protocol to be used in the proximity communication. The communication protocol recognizing unit 21 identifies the service and use state provided by proximity communication according to the determined communication protocol, and outputs the identification result to the service determining unit 22.

  The service determination unit 22 refers to the data stored in the service database 23 by using the identification result acquired from the communication protocol recognition unit 21 to determine whether the service is continuously used. Then, the service determination unit 22 outputs the determination result to the communication method selection unit 24. Here, the continuous use of the service means that the resonance frequency set while maintaining the current matching state is maintained. Also, “no continuous use of service” means that the consistency state can be changed without maintaining the current consistency state. The details of the above process in the service determination unit 22 will be described later.

  The service database 23 stores, as a database, data in which a service, a usage state, and information on whether or not the service is continuously used are associated with each other.

  The coordinate matching unit 6 includes coordinate data acquired from the GPS receiving unit 8, position information acquired from the second communication unit 9, and R / W installation location map data acquired from the R / W installation location map database 7. Based on this, R / W devices existing around the communication terminal device 400 are searched and specified. Then, the coordinate matching unit 6 outputs the specified R / W device information to the communication method selection unit 24 as a search result. In addition, when referring to the R / W installation location map database 7, the coordinate matching unit 6 arbitrarily sets a reference range in advance according to the current position of the communication terminal device 400.

  The communication method selection unit 24 acquires information on R / W devices existing around the communication terminal device 400 from the coordinate matching unit 6. In addition, the communication method selection unit 24 acquires communication method data by referring to the communication method database 5 using the acquired information on the R / W device, and identifies the R / W device specified by the coordinate matching unit 6. Specify the communication method. In addition, the communication method selection unit 24 controls the selective matching circuit 2 in order to make the antenna matching suitable for the R / W facing the specified communication method. At this time, the communication method selection unit 24 changes the control state of the selective matching circuit 2 based on the determination result of the presence or absence of continuous use of the service determined by the service determination unit 22. Specifically, the communication method selection unit 24 controls the selection type matching circuit 2 using the search result of the coordinate matching unit 6 as in the first embodiment, when the determination result indicates no continuous use. . Moreover, the communication system selection part 24 maintains the control state of the selection type | mold matching circuit 2 irrespective of the search result of the coordinate matching part 6, when a determination result has continuous use.

  The selective matching circuit 2 matches the antenna 1 for each facing R / W by switching the antenna matching condition for each type of the facing R / W device according to the control of the communication method selection unit 24. That is, the selective matching circuit 2 resonates the antenna 1 under optimum antenna matching conditions for each type of R / W device to secure a wide communication area, and generates a large current when communicating with the R / W. To increase the signal amplitude.

  FIG. 5 is a diagram illustrating an example of data stored in the service database 23.

  In FIG. 5, “O” in the state maintenance means that the service is continuously used. That is, “○” for maintaining the state indicates the control state of the selective matching circuit 2 at the time of “entrance” or “product purchase (within ticket gate)”, and then “exit” or “product purchase (outside of ticket gate)”. It means to keep it done. These “entry”, “product purchase (within the ticket gate)”, “exit”, and “product purchase (outside the ticket gate)” can be identified by specifying the R / W device in the coordinate matching unit 6. In addition, “×” for maintaining the state means that the service is not continuously used.

  In the case of FIG. 5, when the communication protocol recognizing unit 21 identifies Suica (registered trademark) as a service and “entrance” or “product purchase (within ticket gate)” as a use state, the service determination unit 22 By referring to the information of FIG. 5 stored in the service database 23, it is determined that the matching state of the selective matching circuit 2 is continued. Thereafter, when the coordinate matching unit 6 identifies an R / W device installed in the exit gate or the product purchaser outside the ticket gate, the communication method selection unit 24 can change the matching state of the selective matching circuit 2 To control.

  On the other hand, when the communication protocol recognizing unit 21 identifies the communication method used for TASPO (registered trademark), the service determining unit 22 refers to the information of FIG. Determine if the service is not used continuously. In this case, the communication method selection unit 24 controls the selective matching circuit 2 as in the first embodiment.

  FIG. 6 is a diagram illustrating an example of the transition of the usage state of the communication terminal device 400 and the state of the communication method selection unit 24. In FIG. 6, they are arranged in time series from the top.

  In FIG. 6, a cigarette vending machine is provided with a Type A TASPO R / W device, and a station is equipped with a FeliCa Suica R / W device. The communication terminal device 400 that has entered the ticket gate through the station (step ST601) always leaves the ticket gate (step ST602), and therefore maintains the state of Suica's Type A system. As a result, even if the communication terminal device 400 cannot acquire position information, stable communication with the R / W device can be performed when leaving the ticket gate. In an R / W device used in a system such as a ticket gate, it is desirable to be able to communicate stably at high speed, so the communication terminal device 400 of this embodiment is effective. In addition, when the communication terminal device 400 maintains the alignment state, the communication terminal device 400 can perform communication using other communication methods, although there is an influence such as a narrowed communication area. For example, after entering the ticket gate, it is possible to purchase tobacco (step ST603) with a cigarette vending machine installed in the ticket gate.

  As described above, according to the present embodiment, in addition to the effect of the first embodiment, the control state of the matching circuit is changed in a use state where the same communication method is likely to be used again within a predetermined time. As a result, stable communication can be performed at high speed.

(Embodiment 3)
FIG. 7 is a block diagram showing a configuration of communication terminal apparatus 700 according to Embodiment 3 of the present invention.

  A communication terminal device 700 shown in FIG. 7 has a second communication unit 30 instead of the second communication unit 9 with respect to the communication terminal device 400 according to the second embodiment shown in FIG. An R / W installation location map database 31 is provided instead of the installation location map database 7, a communication method database 32 is provided instead of the communication method database 5, and a service database 33 is provided instead of the service database 23. In FIG. 7, parts having the same configuration as in FIGS. 1 and 4 are denoted by the same reference numerals and description thereof is omitted.

  The communication terminal device 700 includes an antenna 1, a selective matching circuit 2, a first communication unit 3, a coordinate matching unit 6, a GPS reception unit 8, a communication protocol recognition unit 21, a service determination unit 22, The communication method selection unit 24, the second communication unit 30, the R / W installation location map database 31, the communication method database 32, and the service database 33 are mainly configured.

  The second communication unit 30 performs communication using the communication method used in the mobile phone, and acquires the current position information of the communication terminal device 700. Then, the second communication unit 30 outputs the acquired position information to the coordinate matching unit 6. Moreover, the 2nd communication part 30 acquires R / W installation location map data via a mobile telephone network. In addition, the second communication unit 30 acquires data in which the R / W type is associated with the communication method data via the mobile phone network. Further, the second communication unit 30 acquires data that associates the service, the use state, and the information on the presence / absence of continuous use of the service via the mobile phone network. In addition, the second communication unit 30 writes the acquired R / W installation location map data in the R / W installation location map database 31. In addition, the second communication unit 30 writes data in which the acquired R / W type and communication method data are associated with each other in the communication method database 32. In addition, the second communication unit 30 writes, in the service database 33, data in which the acquired service, the usage state, and information on the presence / absence of continuous use of the service are associated with each other. The second communication unit 30 acquires the data or information stored in each database when, for example, opening a new station or opening a new convenience store.

  The R / W installation location map database 31 is a database that stores R / W installation location map data in which R / W device types and R / W installation locations are associated with each other. Further, the R / W installation location map database 31 stores information on the installation location of the R / W device acquired by the second communication unit 30.

  The communication system database 32 is a database that stores data in which R / W types are associated with communication system data. Further, the communication method database 32 stores communication method data associated with the type of the R / W device acquired by the second communication unit 30.

  The service database 33 stores, as a database, data in which services, usage states, and information on whether or not services are continuously used are associated with each other. In addition, the service database 33 stores data obtained by the second communication unit 30 in association with the service, the usage state, and the information on the presence / absence of continuous use of the service. Thereby, the service database 33 can appropriately update data in which the service, the use state, and the information on the presence / absence of continuous use of the service are associated with each other.

  The coordinate matching unit 6 includes coordinate data acquired from the GPS receiving unit 8, position information acquired from the second communication unit 30, and R / W installation location map data acquired from the R / W installation location map database 31. Based on this, R / W devices existing around the communication terminal device 700 are searched and specified. Then, the coordinate matching unit 6 outputs the specified R / W device information to the communication method selection unit 24 as a search result.

  The service determination unit 22 refers to the data stored in the service database 33 using the identification result acquired from the communication protocol recognition unit 21 to determine whether the service is continuously used. Then, the service determination unit 22 outputs the determination result to the communication method selection unit 24.

  The communication method selection unit 24 acquires information about R / W devices existing around the communication terminal device 700 from the coordinate matching unit 6. The communication method selection unit 24 acquires communication method data by referring to the communication method database 32 using the acquired R / W device information, and the R / W device identified by the coordinate matching unit 6. Specify the communication method. In addition, the communication scheme selection unit 24 controls the selective matching circuit 2 in order to make the antenna matching suitable for the R / W device facing the specified communication scheme. At this time, the communication method selection unit 24 changes the control state of the selective matching circuit 2 based on the determination result of the presence or absence of continuous use of the service determined by the service determination unit 22. Specifically, the communication method selection unit 24 controls the selection type matching circuit 2 using the search result of the coordinate matching unit 6 as in the first embodiment, when the determination result indicates no continuous use. . Moreover, the communication system selection part 24 maintains the control state of the selection type | mold matching circuit 2 irrespective of the search result of the coordinate matching part 6, when a determination result has continuous use.

  As described above, according to the present embodiment, in addition to the effects of the first embodiment and the second embodiment, the installation location of the R / W device, the addition of the communication method to be used, or the service When changing conditions for continuous use, the database can be updated to the latest data using the mobile phone network. As a result, stable communication can be performed even when the usage environment has changed.

(Embodiment 4)
FIG. 8 is a block diagram showing a configuration of communication terminal apparatus 800 according to Embodiment 4 of the present invention.

  A communication terminal apparatus 800 illustrated in FIG. 8 includes a first communication unit 40 instead of the first communication unit 3 with respect to the communication terminal apparatus 700 according to Embodiment 3 illustrated in FIG. In FIG. 8, the same components as those in FIGS. 1, 4 and 7 are denoted by the same reference numerals, and the description thereof is omitted.

  The communication terminal device 800 includes an antenna 1, a selective matching circuit 2, a coordinate matching unit 6, a GPS receiving unit 8, a communication protocol recognition unit 21, a service determination unit 22, a communication method selection unit 24, 2 communication units 30, R / W installation location map database 31, communication method database 32, service database 33, and first communication unit 40.

  The first communication unit 40 acquires the signal received by the antenna 1 via the selective matching circuit 2, frequency-converts, demodulates and decodes the acquired signal and outputs the signal to the communication protocol recognition unit 21. The first communication unit 40 performs the above processing when performing NFC communication, for example.

  Moreover, the 1st communication part 40 acquires R / W installation location map data via a NFC communication network. In addition, the first communication unit 40 acquires data in which the R / W type is associated with the communication method data through the NFC communication network. In addition, the first communication unit 40 acquires data that associates the service, the use state, and the information on the presence / absence of continuous use of the service via the NFC communication network. In addition, the first communication unit 40 writes the acquired R / W installation location map data in the R / W installation location map database 31. In addition, the first communication unit 40 writes data in which the acquired R / W type and communication method data are associated with each other in the communication method database 32. In addition, the first communication unit 40 writes, in the service database 33, data in which the acquired service, the usage state, and the information on whether or not the service is continuously used are associated with each other. The first communication unit 40 acquires the data or information stored in each database when, for example, opening a new station or opening a new convenience store.

  The communication protocol recognition unit 21 analyzes the signal acquired from the first communication unit 40 to identify the communication method, and outputs the identification result to the service determination unit 22.

  The R / W installation location map database 31 is a database that stores R / W installation location map data in which the type of installed R / W is associated with the R / W installation location. Further, the R / W installation location map database 31 stores information on the installation location of the R / W device acquired by the second communication unit 30. The R / W installation location map database 31 stores information on the installation location of the R / W device acquired by the first communication unit 40.

  The communication system database 32 is a database that stores data in which R / W types are associated with communication system data. Further, the communication method database 32 stores communication method data associated with the type of the R / W device acquired by the second communication unit 30. The communication method database 32 stores communication method data associated with the type of the R / W device acquired by the first communication unit 40.

  The service database 33 stores, as a database, data in which services, usage states, and information on whether or not services are continuously used are associated with each other. In addition, the service database 33 stores data obtained by the second communication unit 30 in association with the service, the usage state, and the information on the presence / absence of continuous use of the service. In addition, the service database 33 stores data obtained by the second communication unit 30 in association with the service, the usage state, and the information on the presence / absence of continuous use of the service. Thereby, the service database 33 can appropriately update data in which the service, the use state, and the information on the presence / absence of continuous use of the service are associated with each other.

  As described above, according to the present embodiment, in addition to the effects of the first to third embodiments, the state in which the database cannot be updated by the second communication unit or the function of the second communication unit is provided. Even if there is no configuration, the data in the database can be updated to the latest state. As a result, stable communication can be performed even when the usage environment has changed.

  In addition, in said Embodiment 1- Embodiment 4, it is not limited to the embodiment mentioned above at all, and it can implement with a various form in the range which does not deviate from the summary.

  The communication terminal device and the communication method according to the present invention are particularly suitable for performing near field communication using electromagnetic induction with a plurality of external communication devices.

DESCRIPTION OF SYMBOLS 1 Antenna 2 Selective matching circuit 3, 40 1st communication part 4, 24 Communication system selection part 5, 32 Communication system database 6 Coordinate collation part 7, 31 R / W installation location map database 8 GPS receiving part 9, 30 1st 2 communication unit 21 communication protocol recognition unit 22 service determination unit 23, 33 service database 100, 400, 700, 800 communication terminal device

Claims (5)

First communication means for performing proximity communication by electromagnetic induction;
Position information acquisition means for acquiring current position information;
A first storage unit that stores information on an installation location of the reader / writer device; a verification unit that identifies the reader / writer device based on the information on the installation location and the position information;
Second storage means for storing communication method information of the reader / writer device;
Selecting means for selecting the communication method corresponding to the reader / writer device specified by the collating means from information of the communication method;
A matching circuit that resonates at the resonance frequency of the communication method selected by the selection means during the proximity communication;
A communication terminal device. Discriminating means for analyzing the received signal of the proximity communication and determining a communication protocol used in the proximity communication;
A third storage means for storing service information in which a use state of the service provided by the near field communication according to a communication protocol is associated with information on whether or not to maintain the resonance frequency;
The communication terminal apparatus according to claim 1, wherein the matching circuit maintains resonance at the resonance frequency based on the communication protocol determined by the determination unit and the service information.   The information on the installation location or the information on the communication method is acquired via a mobile phone network, the acquired information on the installation location is stored in the first storage means, and the information on the installation location is updated and acquired. The communication terminal apparatus according to claim 1, further comprising a second communication unit that stores the communication method information in the second storage unit and updates the communication method information.   The first communication unit acquires the information on the installation location or the information on the communication method by the proximity communication, stores the acquired information on the installation location in the first storage unit, and stores the information on the installation location. The communication terminal device according to claim 1, wherein the communication method is updated by storing the acquired information on the communication method in the second storage unit. A communication method in a communication terminal device that communicates with a reader / writer device,
Performing proximity communication by electromagnetic induction;
Obtaining current location information;
Identifying the reader / writer device based on the location information of the reader / writer device stored in the storage means and the position information;
Selecting a communication method corresponding to the reader / writer device identified by the collating means from information on the communication method of the reader / writer device stored in the storage means;
Resonating at the resonant frequency of the selected communication method during the proximity communication;
A communication method comprising:

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